High severityNVD Advisory· Published Sep 27, 2026
CVE-2026-89136
CVE-2026-89136
Description
When using RPK (Raw Public Key), the client side of a TLS 1.2, 1.3 and DTLS 1.2 connection could accept an unsolicited server_cert_type=RawPublicKey which allowed a malicious or misbehaving server to bypass authentication. RPK is off by default and only enabled in --enable-rpk OR --enable-all OR --enable-distro AKA HAVE_RPK builds.
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Affected products
1Patches
Vulnerability mechanics
References
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